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Two green DDR4 RDIMM modules with gold contacts and black chips

OWC

OWC 32GB (2x16GB) DDR4 2400 ECC Registered RDIMM Cisco UCS C240 M4 memory upgrade

SKU CH-K8J9-D6D6K

32GB dual-channel DDR4 2400 ECC registered RDIMM kit for Cisco UCS C240 M4 servers

  • Total capacity32 GB (2 × 16 GB)
  • Rated speedDDR4 2400 (PC4 19200)
  • CAS latencyCL17
  • Rated voltage1.2 V
  • Buffer typeRegistered
  • Memory rank1Rx4

Capacity 32GB (2 x 16GB)

  • 32 GB kit expands server capacity
  • ECC registered design prevents data errors
  • DDR4 2400 speed matches system specs
  • 2 V operation reduces power draw
  • Direct replacement for Cisco UCS C240 M4

32GB DDR4 2400 ECC RDIMM kit

This OWC upgrade kit provides 32GB of DDR4 2400 memory across two 16GB registered DIMMs. Each module runs at PC4-19200 with CL17 latency and 1.2V voltage. The 288-pin ECC RDIMM form factor is built for Cisco UCS C240 M4 servers and replaces Cisco part numbers UCSMR1X161RVA and UCSMR1X161RVG. The product is new and ready for installation.

Suits Cisco UCS C240 M4 upgrades

This memory fits administrators expanding a Cisco UCS C240 M4 server with validated ECC registered modules. It will not work in standard desktop computers or consumer motherboards that require unbuffered non-ECC DIMMs. Systems needing load-reduced ECC memory or different pin counts must use alternative parts. Mixing with unbuffered or load-reduced memory is not supported.

Registered ECC DDR4 2400 specification

The registered ECC design with 1Rx4 organisation is the single specification that determines compatibility with the Cisco UCS C240 M4 memory controller. Unbuffered or load-reduced modules will not function in this platform. The DDR4 2400 speed and 1.2V operation match the server's qualified memory profile. Verify your system requires registered ECC before purchase.

How it compares

Measured against everything we stock in Model-Specific Memory Upgrades, at today’s prices. Recalculated every night.

Price $216.99
Cheaper than about 58% of the 21,161 comparable items (median $397.99).
Total capacity 32 GB (2 × 16 GB)
Typical for this category: the median of 20,941 items is 32 GB.
Price per GB $6.78 per GB
Cheaper than about 59% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameOWC
Part number2R4D41R4032P
Total capacity32 GB (2 × 16 GB)
Product type288-Pin DDR4 ECC RDIMM
Performance
Rated speedDDR4 2400 (PC4 19200)
Memory
CAS latencyCL17
ECC supportYes
Buffer typeRegistered
Memory rank1Rx4
Heat spreaderNo
Power
Rated voltage1.2 V
Compatibility
Compatible systemsCisco UCS C240 M4

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Questions about this item

Will the 2400 MHz CL17 registered ECC modules work alongside my existing DDR4 2400 registered ECC DIMMs in the Cisco UCS C240 M4?

Yes, the kit uses the same DDR4 2400 PC4-19200 CL17 1.2 V registered ECC specification, so it can populate empty slots beside identical modules.

How can I verify the 32 GB kit is recognised at 2400 MHz with ECC active after installation?

Check the server BIOS or Cisco UCS Manager — it should show 32 GB total, 2400 MT/s speed and ECC enabled for the new DIMMs.

Does the upgrade kit include only the two 16 GB RDIMMs or are any tools or cables supplied?

The package contains two 16 GB 288-pin DDR4 2400 CL17 1Rx4 1.2 V ECC registered RDIMMs; no tools or cables are included.

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